.app {
  width: 70%;
  margin: auto;
}

.app .app-title {
  text-align: center;
  margin-bottom: 30px;
  position: relative;
}

.app .app-title p:nth-child(1) {
  font-size: 18px;
}

.app .app-title p:nth-child(2) {
  position: absolute;
  right: 0px;
  top: 0px;
  color: #666666;
  font-size: 13px;
}

.app .data-content {
  margin: 50px 0px;
}

.app .data-content img {
  width: 80%;
  height: 500px;
}

.app .data-content img:hover {
  box-shadow: 2px 2px #B0B0B0;
}

.data {
  width: 100%;
}

.data img {
  width: 100%;
  height: 300px;
}

.advantage {
  width: 100%;
  background-color: #F8F8F8;
  padding: 30px 0px;
}

.advantage .advantage-title {
  width: 70%;
  margin: auto;
  text-align: center;
}

.advantage .advantage-title p:nth-child(1) {
  font-size: 18px;
}

.advantage .advantage-title p:nth-child(2) {
  font-size: 12px;
}

.advantage .advantage-content {
  width: 70%;
  margin: auto;
  display: flex;
  justify-content: space-between;
  margin-top: 40px;
}

.advantage .advantage-content .advantage1 {
  width: 28%;
  border: 1px solid #DFDFDF;
  box-shadow: 2px 2px #DFDFDF;
  text-align: center;
  padding: 20px 0px;
}

.advantage .advantage-content .advantage1 img {
  width: 24%;
  height: 60px;
}

.advantage .advantage-content .advantage1 .img2 {
  display: none;
}

.advantage .advantage-content .advantage1 p:nth-child(3) {
  font-size: 18px;
}

.advantage .advantage-content .advantage1 p:nth-child(4) {
  font-size: 13px;
  color: #666666;
  line-height: 20px;
  letter-spacing: 2px;
  padding: 0px 10px;
}

.advantage .advantage-content .advantage1:hover {
  transform: scale(1.1);
  transition: all 1s;
}

.advantage .advantage-content .advantage1:hover .img1 {
  display: none;
}

.advantage .advantage-content .advantage1:hover .img2 {
  display: block;
  margin: auto;
}
